- A powerful antioxidant that reduces the appearance of fine lines and wrinkles, neutralizes free radicals, provides photoprotection, and stimulates collagen synthesis- Proven delivery of L-ascorbic acid to the skin in concentrations proven to be effective- Once absorbed, can’t be washed or rubbed off

Directions:

Suitable for sensitive skin & new AOX users

Once in the morning after cleansing, apply 4-5 drops to a dry face, neck and chest. Follow with a moisturiser and sunblock.once opened use within 6 months

Serum 20% no longer available - Tests have shown that 10% L -ascorbic acid can provide the same results as serum 20% .Serum 20% was launched in 1999 because tests showed that 20% L ascorbic acid provides skin with the maximum one time application concentration. The reservoir effect of L ascorbic acid means that an application of a 10% L ascorbic acid saturates the skin within 3 days offering the exact protection and benefits as serum 10%.

I've only used the product for two weeks and already colleagues have noticed a glow. Hard to know for sure if the product is working but as it was recommended by Sk:n and there have been no adverse effects from usage, I feel confident it is only doing wonders for my skin. (Posted on 31/03/2014)

I used this product every morning after wash my face.I recommend this product to my friends. The quality of the product is very effective and good for preventing the skin damaged. (Posted on 27/02/2014)

I've been using my products (Bioglycolic cleanser,Skinceuticals serum 10% AOX, Bioclear lotion ) for 3 weeks now and I have noticed a good improvement. My open pores are not so congested and my skin is definately softer, brighter and feels clean. (Posted on 01/10/2013)